The transition to clean energy - time for specifics, isn't it??

I've been meaning to say this out loud - that is, here! - for a couple of months now.

With all of the talk of CO2 emissions targets needing to be set and met, now on quite short time frames, it still seems to have the feeling of mere wishful thinking for any nation until they start to specify exactly how it will happen.   

And why is it we still don't seem to be at the stage that nations can start to do that? What is the hold up?  Is it because we  let the private sector have too much independence in sorting out clean energy generation?

I know you hear of papers written with assurances that renewable energy can do it all - but there are lots of choices in the implementation of renewable energy, and when is any government going to get very specific about it?

Current power plants have know useful life spans:  why can't we yet say how and when the replacement will be built and start operating?

I know grid scale storage is going to be important, and I also know flow batteries are looking promising - can't government agree to intensive research in which form of flow battery is best and will be installed with the next big (say) solar farm.   

I'm just spitballing here, but in a country like Australia, here are what seem to me to be some obvious steps:

a.    work out how much further we can get with domestic rooftop solar and domestic battery storage -  presumably there is still plenty of room to reduce large power plant output by more of it;

b.   work out the clear incentives for maximising rooftop solar.   As I have said several time, I can't see why it should not be mandated on new house construction, for one.  

c.    engage in the flow battery question - work out the most promising contenders and get them to trial them here, if necessary;

f.    work out where solar farms can go that are going to service the large cities - floating solar on dams or bays if you want to reduce transmission distance, and combined solar and agriculture on useful farmland.   If necessary - work out where solar in the desert can go and if the HVDC cable is going to run to get it to where the population is;

g.   work out what can be done with more wind, especially in the southern parts which have less sun in winter;

h.   work out the national grid that's make it all work.

It seems to me that if ever there is a country that should be able to get by on full solar/wind combination with enough storage, it's Australia.   But I want to see the specific plans as to how we are going to get there.